申请人:Nippon Steel Chemical Co., Ltd.
公开号:EP2078715A1
公开(公告)日:2009-07-15
Provided is a proton-conducting compound which provides proton conductivity without humidification and is suitable for electrochemical device materials such as solid electrolytes for fuel cells and electrolytes for batteries. Provided also is a proton-conducting polymer. The proton-conducting compound is composed of a melamine compound salt obtained from a melamine compound represented by the following formula (1) and a Bronsted acid and the proton-conducting polymer is obtained by homopolymerizing or copolymerizing the melamine compound salt. In formula (1), R1, R2, R3, R4, and R5 each is independently an alkyl group, an aryl group, an alkenyl group, a heterocyclic group, or a hydrogen atom; at least one of them is a group other than hydrogen; R2 and R3 or R4 and R5 may join together to form a heterocyclic structure; and the alkyl group, the aryl group, the alkenyl group, or the heterocyclic group may have a substituent. A melamine compound salt wherein R1 is CH2=CR6-CO-O(CH2)n- polymerizes to yield a proton-conducting polymer. In this particular R1 group, R6 is hydrogen or an alkyl group and n is an integer equal to or larger than 1.
本发明提供了一种质子传导化合物,无需加湿即可提供质子传导性,适用于电化学装置材料,如燃料电池的固体电解质和电池的电解质。还提供了一种质子传导聚合物。质子传导化合物由三聚氰胺化合物盐和勃朗斯特酸组成,三聚氰胺化合物盐由下式(1)表示,质子传导聚合物由三聚氰胺化合物盐均聚或共聚得到。式(1)中,R1、R2、R3、R4 和 R5 各自独立地为烷基、芳基、烯基、杂环基或氢原子;其中至少一个为氢以外的基团;R2 和 R3 或 R4 和 R5 可连接在一起形成杂环结构;烷基、芳基、烯基或杂环基可具有取代基。其中 R1 为 CH2=CR6-CO-O(CH2)n- 的三聚氰胺化合物盐可聚合生成质子传导聚合物。在这个特定的 R1 基团中,R6 是氢或烷基,n 是等于或大于 1 的整数。